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    <title>Document</title>
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    <script>
      function printNumbers(from, to) {
        let h = setTimeout(function fn() {
          h = setTimeout(fn, 1000);
          // console.log(from++);
          // if (from > to) {
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          // }
        }, 1000);
      }
      printNumbers(1, 6);
    </script>
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